Honda S2000 Service Manual page 226

Fan Gontrols
Radiator Fan Circuit Troubleshooting (cont'd)
7 .
Disconnect the radiator fan motor 2P connector.
Check for continuity between the No. 2 terminal of
the radiator fan relay 4P socket and the No. 2
terminal of the radiator fan motor 2P connector.
RADIATOR FAN EELAY 4P SOCKET
RADIATOR FAN MOTOR2P CONNECTOR
ls there continuity?
YES Go to step 8.
NO Repair open in the wire between the under
hood fuse/relay box and the radiator fan motor 2P
connector terminal No. 2.I
Check for continuity between the No. 1 terminal of
the radiator fan motor 2P connector and body
g rou nd.
RADIATOR
W i r e s i d e o f f e m a l e t e r m i n a l s
ls there continuity?
YES- Replace the radiator fan motor.l
NO Check for an open in the wire between
radiator fan motor 2P connector terminal No. 1 and
body ground. lf the wire is OK, check for a poor
g r o u n d a t G 2 0 1 . 1
FAN MOTOR 2PCONNECTOR
rBl
L+
l*-
Y
1 0 - 1 6
9 . Reinstall the radiator fan relay.
Disconnect the radiator fan switch 2P connector.
Connect the No, 1 and No. 2 terminals, of the
radiater fan switch 2P connector with a jumper wire.
RADIATOR FAN SWITCH
2P CONNECTOR
JUMPER
WIRE
Wire side of female terminals
Does the radiator fan tun?
YES Replace the radiator fan switch.l
NO- Go to step 12.
Remove the jumper wire, and measure the voltage
between the No. 2 terminal of the radiator fan
switch connector and body ground.
BAOIATOR FAN SWITCH
2 P C O N N E C T O R
ls there battery voltage?
YES Check for an open in the wire between
radiator fan switch 2P connector terminal No. 1 and
body ground. lf the wire is OK, check for a poor
g r o u n d a t G 3 0 1 . 1
NO Repair open in the wire between the radiator
fan switch terminal No. 2 and the under-hood
fuse/relay box.I
1 0 .
1 1 .